Connect your p38 audio output device , guitar to laptop, loudspeaker, portable speaker or professional music player which has a 3.5 mm jack input.Precision machined one-piece contacts .P-38/TRS male stereo audio connector.6.3 mm p38 Mono Jack Plug to 3.5 mm ep Stereo Jack Plug Lead Colour: BLACK Packing: poly pouch Connectors: Mono Jack Plug/Stereo Jack Plug Length (m):5m approx